Home / 19,155,701.75-28,708,601.38-7,782,854.63

Finding the Fourth Proportional to 19,155,701.75, 28,708,601.38 and 7,782,854.63

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Solution

The fourth proportional to 19,155,701.75, 28,708,601.38 and 7,782,854.63 is: 11,664,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155,701.75 : 28,708,601.38 = 7,782,854.63 : x
  2. Step 2: Convert to fraction form
    19,155,701.75/28,708,601.38 = 7,782,854.63/x
  3. Step 3: Cross multiply
    19,155,701.75x = 28,708,601.38 × 7,782,854.63
  4. Step 4: Simplify right side
    19,155,701.75x = 223,434,871,008,157.25
  5. Step 5: Solve for x
    x = 223,434,871,008,157.25/19,155,701.75
  6. Step 6: Final answer
    x = 11,664,144.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.